package net.lzzy.practices.utils;


import net.lzzy.practices.web.models.VmUser;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import java.util.*;

/**
 *@author lzzy_gxy on 2022/5/11.
 *Description:
 */
@Component
public class AuthUtils {
    public static final List<VmUser> USERS=new ArrayList<>();

    @Value("${app.over.minutes}")
    public static void setMinutes(int minutes) {
        AuthUtils.minutes = minutes;
    }

    private static int minutes;

    public static VmUser getUser(String token){
        return USERS.stream()
                .filter(u ->u.getToken().equals(token))
                .findFirst()
                .orElse(null);
    }

    public static boolean invalid(UUID userId,String token){
        VmUser user=getUser(token);
        if (user==null||isOverTime(user)){
            return true;
        }
        boolean valid=user.getId().equals(userId);
        if (valid){
            user.setLastLogin(new Date());
        }
        return !valid;
    }
    private static boolean isOverTime(VmUser user){
        long offMillis=System.currentTimeMillis() -user.getLastLogin().getTime();
        long minutes=offMillis/(1000*60);
        boolean over=minutes>AuthUtils.minutes;
        if (over){
            USERS.remove(user);
        }
        return  over;
    }
    public static boolean illegalUser(String token,int[] allowedRoles){
        VmUser user=getUser(token);
        if (user==null||isOverTime(user)){
            return true;
        }
        user.setLastLogin(new Date());
        return Arrays.stream(allowedRoles).noneMatch(r->r == user.getType());
    }

    public static String logout(String token){
        VmUser user=getUser(token);
        if(user==null){
            return "注销失败，未发现登录记录";
        }
        USERS.remove(user);
        return "注销成功";
    }
}
